Don't require `nodePort` to template if none is specified #1060

Job	Run time
changes	10s
lint	1m 1s
run-tests (Default - no custom values)	1m 27s
run-tests (PostgreSQL Enabled, --helm-extra-set-args "--set=postgresql.enabled=true --set=postgre...	1m 21s
run-tests (Nginx Enabled, --helm-extra-set-args "--set=image.flavor=fpm --set=nginx.enabled=true")	1m 30s
run-tests (Horizontal Pod Autoscaling Enabled, --helm-extra-set-args "--set=hpa.enabled=true --se...	1m 31s
summary	13s
	7m 13s

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